111845369 has 2 divisors, whose sum is σ = 111845370. Its totient is φ = 111845368.

The previous prime is 111845351. The next prime is 111845399. The reversal of 111845369 is 963548111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103938025 + 7907344 = 10195^2 + 2812^2 .

It is a cyclic number.

It is not a de Polignac number, because 111845369 - 2²⁰ = 110796793 is a prime.

It is a super-2 number, since 2×111845369² = 25018773133492322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111845309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55922684 + 55922685.

It is an arithmetic number, because the mean of its divisors is an integer number (55922685).

Almost surely, 2^111845369 is an apocalyptic number.

It is an amenable number.

111845369 is a deficient number, since it is larger than the sum of its proper divisors (1).

111845369 is an equidigital number, since it uses as much as digits as its factorization.

111845369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 111845369 is about 10575.6970928634. The cubic root of 111845369 is about 481.8065157202.

The spelling of 111845369 in words is "one hundred eleven million, eight hundred forty-five thousand, three hundred sixty-nine".